Fix `reverences`, which I believe should read as `references`.
Change-Id: I450efcbeee0f8861a84b209f2e6636764034232a
Reviewed-on: https://go-review.googlesource.com/19469
Reviewed-by: Russ Cox <rsc@golang.org>
// unstable or rely on enough different elements in each step to encode the
// performed block rearrangements. See also "In-Place Merging Algorithms",
// Denham Coates-Evely, Department of Computer Science, Kings College,
-// January 2004 and the reverences in there.
+// January 2004 and the references in there.
// - Often "optimal" algorithms are optimal in the number of assignments
// but Interface has only Swap as operation.